GroundRosterLicensed Well and Septic Contractors: Cassia County, ID
45 licensed well and septic pros based in Cassia County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against Idaho DEQ - Permitted Subsurface Sewage Disposal System Installers and Idaho IDWR - Licensed Well Drillers. Roster copy last refreshed 2026-10-17.
Towns in Cassia County
All 13 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Cassia County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 45.
| License class | Trade | Listings |
|---|---|---|
| Permitted Septic Installer - Standard/Basic Installer | Septic | 25 |
| Permitted Septic Installer - Complex System Installer | Septic | 18 |
| Licensed Well Driller | Well | 2 |
Septic Contractors based in Cassia County (43)
All Weather Ground SolutionsLicensed
Red Barn Plumbing LLC DBA Roto - RooterLicensed
Allen Pump Inc.Licensed
Dry Creek Land Improvements LLCLicensed
Triple J ExcavationLicensed
Dayley AdditionsLicensed
Superior Sewer and DrainLicensed
Idaho Creek ConstructionLicensed
Paul Benko ConstructionLicensed
Jones ConstructionLicensed
Bigwood ExcavationLicensed
Trask Construction Inc.Licensed
C & L KoehnLicensed
Crist and Sons Cont Inc.Licensed
Pappas Pumping & Septic Services LLCLicensed
Aslett Construction Company Inc.Licensed
B & G Dirt Works LLCLicensed
Web Inc. DBA Western Septic & ExcavationLicensed
Gnesa Excavating Inc.Licensed
Dave's ExcavatingLicensed
Doug Weaver ConstructionLicensed
Wizard's Wood ShopLicensed
Pierson Construction Inc.Licensed
SC Construction and Property MaintenanceLicensed
Brian Dey ConstructionLicensed
C M ConcreteLicensed
Free Fall Construction LLCLicensed
Skyline Excavation and Grading LLCLicensed
Worthington Septic ProsLicensed
Loosli Excavating Inc.Licensed
Miller ExcavationLicensed
Bradley ConstructionLicensed
Trinity Mountain Excavators LLCLicensed
Bigg's ConstructionLicensed
Sliman & Butler IrrigationLicensed
Waters Plumbing & HeatingLicensed
Links Dig 4 U LLCLicensed
Tim Smalley ConstructionLicensed
Done-Right ContractingLicensed
C Miller ExcavationLicensed
Ridley LivestockLicensed
Blue Ridge Plumbing & SepticLicensed
JST Construction Inc.Licensed
Water Well Contractors based in Cassia County (2)
Apex Drilling LLCLicensed
Ag Pro Well & RehabLicensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Cassia County, with national cost ranges
Listings based in Cassia County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Cassia County | National cost |
|---|---|---|
| Septic Tank Pumping | 0 | $250 to $600 |
| Septic System Installation | 43 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 0 | $250 to $1,000 |
| Well Drilling | 2 | $5,500 to $35,000 |
| Well Pump Repair | 0 | $1,000 to $2,500 |
None of the listings based in Cassia County hold a license class we can match to septic tank pumping, septic inspection, septic system design, perc test and soil evaluation or well pump repair. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Cassia County
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
Do I need a permit for well or septic work in Idaho?